Input Devices

An input device is one that transfers information from outside the computer system to an internal storage location, such as system RAM, video RAM, flash memory, or disk storage. Without input devices, computers would be unable to change from their default boot-up state. The following sections detail different classes of input devices and a hub, of sorts, used for switching between the most common of these devices. We will also demonstrate the similarities shared by devices that provide input to computer systems as well as their differences. Installation considerations will be presented where appropriate. The following input devices are covered in the following sections:

  • Mouse
  • Keyboard
  • Barcode reader
  • Multimedia devices
  • Biometric ...

Get CompTIA A+ Complete Deluxe Study Guide Recommended Courseware: Exams 220-801 and 220-802, 2nd Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.